Pipe insulation mold



E. E. BODG E PIPE INSULATION'MOLD May 31, 1938.

Filed Aug. 26, 1936 I i 767/742/ll//l//////////////////////// .//////////////////2/l/A llllllllllllllllll .III lllllllllll: null ATTORNEYS v,patinted May 31, 193s PIPE INSULATION MOLD Edward E. Bodge, Honolulu, Territory of Hawaii,

assignor to von Hamm Young Company, Limited, a corporation of Territory of Hawaii Application August 26, 1936, Serial No. 98,035

1 Claim.

This invention relates to pipe insulation and has for the primary object the provision of a simple and inexpensive means. for insulating and water proofing pipes or tubing after the laying and testing out of the latter for leaks and similar defects whereby temperatures of liquids, gases or air conveyed by the pipes will not be changed by vatmospheric or earth temperatures and which may be easily and quickly applied to the pipes at a minimum cost.

With these and other objects in View, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which- Figure 1 is a fragmentary verticalv sectional view showing a pipe line located in a trench and partly covered or insulated in accordance with the present invention.

Figure 2 is a transverse sectional view taken on the line 2 2 of Figure 1.

Figure 3 is a transverse sectional View taken on the line 3 3 of Figure l.

Figure 4 is a fragmentary vertical sectional View showing parts of the pipe insulated with the insulation acting as supports for a mold section prior to receiving insulating material to complete the insulating operation.

Figure 5 is a fragmentary sectional View showing the insulating of the pipe and the leaving of the mold sections thereon when desired.

Figure 6 is a transverse sectional View taken on the line G-G of Figure 5.

Figure 'l is a perspective View illustrating the spacer.

Figure 8 is a perspective view illustrating a split clamp.

Figure 9 is a perspective View illustrating a support or cradle element for the pipe.

Referring in detail to the drawing, the numeral l indicates a pipe to which my invention is adapted and forming a pipeline for the conveyance of liquid, gas or air. The invention is adaptable to the pipe after the laying or installing of the latter. In the drawing the pipe is shown as occupying a position within a trench 2 and may have applied thereto a'covering 3 of any desirable material. At spaced intervals the pipe is supported by blocks or cradles 4 so that the pipe and its covering 3 will be spaced from the walls of the cradle to permit sectional molds 4' to be adapted thereto. 'I'he molds or sections thereof are applied to the pipeV in such a way that there will be a limited distance provided between each section. Each section is in the form of a shell 5 and is supported upon the covering 3 by spacers 6 each including semicircular shaped sections "l, one section having dowel pins 8 to fit in sockets 9 ofthe other section. VAfter the shell 5 has been mounted on the spacers split clamps I are placed about thershell directly over the spacers and drawn` tightly together by bolts or similar fasteners Il. The shell is provided with an opening I2 so that insulating and water proofing material may be poured into the shell to form about the covering 3 between the spacers and the shell 5 a desirable monolithic mass which is impervious as possible to the penetration of Water, air or gas. After the insulating material has hardened the shell 5 is removed, also the spacers. The insulated masses having the spaces therebetween then are connected by adapting thereto one of the mold shells 5 so that the space between the insulated masses may be lled with the insulating material and after the hardening thereof the pipe will be entirely covered from one end to anotherV so that the pipe will be thoroughly insulated either from heat, cold and the penetration of moisture or air. 'Ihe insulation may be made from asphalt or any other suitable material, the only requirements being that such material will ilow freely when required, heated o-r otherwise and will harden or set to form the durable monolithic mass impervious to the penetration of water, air or gas.

After the hardening of the insulating material the mold sections may be entirely removed or in some instances it may be desired to leave the shells of the mold assembled on the masses and the openings l2 may be closed by covers I4 held in place by split clamps l5. To ll the space between the masses, a shell I3 is fitted thereto and held in place by the clamps ID so that insulating material may be iilled in about the pipe between the already hardened masses. When the mold sections or shells are removed they can be again used as many times -as desired.

A pipe covered in the manner described will be so insulated that the liquid, gas or air conveyed I thereby will not be changed as to temperature by atmospheric temperatures or earth temperatures and also the elimination of leaks of air or water through the insulation prevents deterioration to the insulating material as well as to the pipe. The leaks are prevented by the fact that the outside insulation of the pipe is poured in place in forms which cover the entire structure' at temf Y' Y`2,119,415

peratures which insure monolithic adhesion and leave no joints or spaces to be afterwardsipatched. Insulating of the pipes in the mannerdescribed can be easily and economically accomplished and also permits the laying of plpesnand the testing of such pipes for defects prior to the application of Y the insulation.V Y

isr- Y Y s Y YAn apparatus for molding insulation on a pipe comprising a plurality of mold shells positioned to surround a pipe and inA spaced relation thereto,

certain of said shells receiving therein the ends ofthe other shells, spacers supporting certain of Having deseribedt'he invention,` what ils/claimed the shells on the pipe and the Vother shells supported by the shells carried by said spacers, said Yshells having lslots to permit placing of insula-v tion material in the shellsto fill the'spa'ces be- Y tween the shells and the pipe and the spacers, split Vadjustable clamps binding saidY shells together and positioned over the spacers, cover-*plates'for closing the slots, and 'split adjustable clamps for removably securing the covers in place on the 10 shells. c w Y EDWARD E. BO'DGE, 

